>>103409798
What part of that is pity baiting about their past? It shows them looking up to Momoi and then getting to do the same thing. It doesn't even imply the journey was hard.
Doesn't even show sleepless nights spent working or anything, it shows them having upbeat mornings where they play janken to decide who gets to eat the last snack every day.
Their time in the cell is shown as them just playing games and enjoying idol concerts. If you base your entire knowledge of their past on that MV they were born rich and never had to work.
If anything the ones depicted as having rough lives so far were the ruffians abandoned on the streets inside a cardboard box.